Even if you can reach a more specific conclusion, that wouldn't necessarily rule out complexity as the cause of failure. It's a question of how far you zoom in

Even if you can reach a more specific conclusion, that wouldn't necessarily rule out complexity as the cause of failure. It's a question of how far you zoom in or out. In the micro-level you can find the particular bug that causes failure, while on the macro-level it's still complexity that's causing failure (because it causes bugs like that to occur more frequently).